Experimental Research on the Formaldehyde Diffusion Performance in an Air-Conditioning Office

In most of public buildings, IAQ decreases objectively with lots of decorating materials´ applications. Especially in many office buildings with air-conditioning equipments, the harm caused by indoor contaminants is ignored in contrast to emphasizing energy efficiency. In the chosen typical office of a high commercial building, formaldehyde concentration´s variety in the whole office and the part region of strong formaldehyde emitting source is measured with time changing in different enactment conditions. It emphasizes the importance of effective ventilation and provides the reference for studying how to apply reasonable air distribution so that the high contaminants´ concentration in part region of strong contaminant emitting source is decreased in an air-conditioning office. By measuring the formaldehyde concentration´s variety along vertical direction in the place of occupant´s chair, air distribution´s influence on contaminant concentration along vertical direction in personal area is also illuminated.